s390/bpf,jit: add support for BPF_S_ANC_ALU_XOR_X instruction

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Add support for new BPF_S_ANC_ALU_XOR_X instruction which got added
with ffe06c17 "filter: add XOR operation".

s390 version of 4bfaddf1 "x86 bpf_jit: support BPF_S_ANC_ALU_XOR_X instruction".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

authored by

Heiko Carstens and committed by

Martin Schwidefsky 13 years ago c59eed11 02291257

1 changed file

expand all

arch

s390

net

bpf_jit_comp.c

arch/s390/net/bpf_jit_comp.c

··· 367 367 /* o %r5,<d(K)>(%r13) */ 368 368 EMIT4_DISP(0x5650d000, EMIT_CONST(K)); 369 369 break; 370 + case BPF_S_ANC_ALU_XOR_X: /* A ^= X; */ 371 + jit->seen |= SEEN_XREG; 372 + /* xr %r5,%r12 */ 373 + EMIT2(0x175c); 374 + break; 370 375 case BPF_S_ALU_LSH_X: /* A <<= X; */ 371 376 jit->seen |= SEEN_XREG; 372 377 /* sll %r5,0(%r12) */